feat(blog): add file-based blog with dynamic slugs, MDX content and layout shell

- Introduced blog routing using Next.js App Router
- Implemented dynamic [slug] pages for blog posts
- Added MDX-based content loading via lib/posts
- Integrated shared TopBar layout with navigation
- Established clear content, lib and component separation

apps/public-web/node_modules/next/dist/server/node-environment.js

@@ -0,0 +1,19 @@
+// This file should be imported before any others. It sets up the environment
+// for later imports to work properly.
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+require("./node-environment-baseline");
+require("./node-environment-extensions/error-inspect");
+require("./node-environment-extensions/console-file");
+require("./node-environment-extensions/console-exit");
+require("./node-environment-extensions/console-dim.external");
+require("./node-environment-extensions/unhandled-rejection");
+require("./node-environment-extensions/random");
+require("./node-environment-extensions/date");
+require("./node-environment-extensions/web-crypto");
+require("./node-environment-extensions/node-crypto");
+require("./node-environment-extensions/fast-set-immediate.external");
+
+//# sourceMappingURL=node-environment.js.map